<!--
 * @Description: 
 * @Author: xiongkuobiao
 * @Date: 2023-02-06 11:15:47
 * @LastEditors: xiongkuobiao
 * @LastEditTime: 2023-02-06 12:00:46
-->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <style>
    body {
      /* border: 1px solid red; */
    }
    .father {
      border: 1px solid red;
    }
    .clear {
      clear: both;
    }
    .box {
      width: 20px;
      height: 20px;
      float: left;
      border: 1px solid;
    }
    .bigBox {
      width: 400px;

      height: 800px;
    }
    .left {
      width: 200px;
      float: left;
      height: 200px;
      background: red;
      opacity: 0.5;
    }
    .right {
      overflow: hidden;
      height: 200px;
      background: blue;
    }
  </style>
  <body>
    <!-- <div class="father">
      <div class="box"></div>
      <div class="box"></div>
    </div> -->
    <div class="bigBox">
      <div class="left"></div>
      <div class="right"></div>
    </div>
  </body>
</html>
